Weeki Wachee Springs cave divers explore even farther in America's deepest spring

Many people consider space to be the final frontier, but cave divers are still exploring and learning things people didn't previously know about our subterranean world.

Cave divers took advantage of Florida's drought conditions to get through narrow passageways and explore more of Weeki Wachee Springs, discovered almost two years ago to be the deepest spring in the United States, according to the St. Petersburg Times.

The divers are trying to prove the spring is connected to another nearby through a series of underground channels.